scholarly journals Non-visual homing and the current status of navigation in scorpions

2020 ◽  
Vol 23 (6) ◽  
pp. 1215-1234 ◽  
Author(s):  
Emily Danielle Prévost ◽  
Torben Stemme
Keyword(s):  
Lateral Displacement ◽  
Light Condition ◽  
Current Status ◽  
Maximum Efficiency ◽  
Participation Rates ◽  
Homing Behavior ◽  
Laboratory Setup ◽  
Behavioral Studies ◽  
Shed Light ◽  
Do So

AbstractWithin arthropods, the investigation of navigational aspects including homing abilities has mainly focused on insect representatives, while other arthropod taxa have largely been ignored. As such, scorpions are rather underrepresented concerning behavioral studies for reasons such as low participation rates and motivational difficulties. Here, we review the sensory abilities of scorpions related to navigation. Furthermore, we present an improved laboratory setup to shed light on navigational abilities in general and homing behavior in particular. We tracked directed movements towards home shelters of the lesser Asian scorpion Mesobuthus eupeus to give a detailed description of their departure and return movements. To do so, we analyzed the departure and return angles as well as measures of directness like directional deviation, lateral displacement, and straightness indices. We compared these parameters under different light conditions and with blinded scorpions. The motivation of scorpions to leave their shelter depends strongly upon the light condition and the starting time of the experiment; highest participation rates were achieved with infrared conditions or blinded scorpions, and close to dusk. Naïve scorpions are capable of returning to a shelter object in a manner that is directionally consistent with the home vector. The first-occurring homing bouts are characterized by paths consisting of turns about 10 cm to either side of the straightest home path and a distance efficiency of roughly three-quarters of the maximum efficiency. Our results show that neither chemosensation nor vision, but rather path integration based on proprioception, plays a superior role in the homing of scorpions.

De splitsing van de Belgische Socialistische Partij. Twee verklarende documenten

2008 ◽  
Vol 67 (2) ◽  
pp. 99-114
Author(s):  
Pieter-Jan Van Bosstraeten
Keyword(s):  
Socialist Party ◽  
French Speaking ◽  
History Of ◽  
Post War ◽  
Shed Light ◽  
Do So

Op 11 oktober 1978 splitste de Belgische Socialistische Partij zich als laatste van de drie unitaire partijen op in twee autonome partijen. Langs Franstalige zijde werd éénzijdig de Parti Socialiste opgericht, twee jaar later volgde de Socialistische Partij. De splitsing vormde het eindpunt van een lange en bewogen geschiedenis van de socialistische eenheidspartij.Ondanks het feit dat heel wat auteurs reeds een licht hebben geworpen op de belangrijkste gebeurtenis uit de na-oorlogse geschiedenis van de BSP, is het antwoord op de vraag naar de oorzaken van de splitsing vrij eenduidig. Overwegend wordt aangenomen dat de splitsing van de BSP het gevolg is van een moeilijke samenwerking in het kader van het communautaire dossier. Andere oorzaken worden amper aangehaald, of onvoldoende verduidelijkt. Tevens wordt slechts het politiek-tactische aspect van het communautaire dossier uitvoerig besproken. In de bestaande literatuur wordt zo goed als nergens dieper ingegaan op de inhoudelijke elementen die binnen de partij problemen teweegbrachten.Onderzoek van twee cruciale documenten heeft de mogelijkheid geboden het verhaal van de splitsing beter te reconstrueren. Daarbij is gebleken dat de splitsing van de partij in een ruimer kader dient te worden geïnterpreteerd dan het communautaire dossier. Aan de splitsing van de partij ging een lang proces van autonomisering en vleugelvorming vooraf. Bovendien werd aangetoond dat de problematiek inzake het Egmont-Stuyvenbergpact niet de enige directe oorzaak vormde voor de splitsing van de partij, in de periode 1977-1978. Enkele andere oorzaken hebben daartoe eveneens bijgedragen.________The division of the Belgian Socialist Party. Two explanatory documentsOn 11 October 1978 the Belgian Socialist Party divided into two autonomous parties, the last of the three unitary parties to do so. First the French speaking section unilaterally founded the ‘Parti Socialiste’, two years later the ‘Socialistische Partij’ followed. The division constituted the termination of the long and eventful history of the socialist unitary party.In spite of the fact that many authors have already shed light on the most important event from the post-war history of the BSP, the answer to the question about the causes for the division are fairly unequivocal. The majority of opinions favour the view that the division of the BSP was the consequence of the difficulty of collaborating within the framework of the community dossier. Other causes are hardly cited, or insufficiently elucidated. Moreover only the politico-tactical aspect of the community dossier is discussed in detail. The existing literature hardly ever carries out a more thorough examination of the intrinsic elements that caused problems within the party.The investigation of the two crucial documents has offered the opportunity to provide a better reconstruction of the division. This showed that the division of the party should be interpreted within a larger framework than the community dossier alone. A long process of autonomisation and the formation of political wings preceded the division of the party. It also demonstrated that the issues concerning the Egmont-Stuyvenberg pact were not the only direct cause for the division of the party, during the period 1977-1978. There were several other causes that also contributed to this division.

Lawful Remedy or Illegal Response? Resolving the Issue of Foreign Subsidization Under WTO Law

2021 ◽  
pp. 1-24
Author(s):  
Victor Crochet ◽  
Marcus Gustafsson
Keyword(s):  
European Union ◽  
World Trade Organization ◽  
World Trade ◽  
The European Union ◽  
Fair Competition ◽  
Trade Law ◽  
International Trade Law ◽  
The World ◽  
Shed Light ◽  
Do So

Abstract Discontentment is growing such that governments, and notably that of China, are increasingly providing subsidies to companies outside their jurisdiction, ‘buying their way’ into other countries’ markets and undermining fair competition therein as they do so. In response, the European Union recently published a proposal to tackle such foreign subsidization in its own market. This article asks whether foreign subsidies can instead be addressed under the existing rules of the World Trade Organization, and, if not, whether those rules allow States to take matters into their own hands and act unilaterally. The authors shed light on these issues and provide preliminary guidance on how to design a response to foreign subsidization which is consistent with international trade law.

Interaction between patient and health professional

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Anita Naemi Holm
Keyword(s):  
Health Professional ◽  
Health Sector ◽  
Richard Rorty ◽  
Cultural Encounter ◽  
Theoretical View ◽  
German Philosopher ◽  
The One ◽  
Hans Georg Gadamer ◽  
Shed Light ◽  
Do So

This article presents a theoretical view on culturally embedded thinking and action in encounters between patient and health professional. A key point of the analysis indicates that a highly efficient health sector may entail an implicit duality: on the one hand, the health professional can and often must relate pragmatically to the patient in order to solve problems and do so quickly, while on the other, the professional may be personally challenged when embedded cultural thinking leads to conflicts or dilemmas. This means that a purely pragmatic perspective will be challenged when such conflicts arise. The article looks at interrelated concepts such as ‘culture’, ‘prejudice’ and ‘meaning’ in order to shed light on the presuppositions that are brought into the cultural encounter between patient and health professional. This kind of analysis will hopefully contribute to a raised awareness of what is actually – apart from pragmatic problem solving – going on in such encounters. The conceptual framework used in this article primarily draws on the German philosopher Hans-Georg Gadamer, which is contrasted with the pragmatic perspective from the American philosopher Richard Rorty.

scholarly journals Human spatial representation: what we cannot learn from the studies of rodent navigation

2018 ◽  
Vol 120 (5) ◽  
pp. 2453-2465 ◽  
Author(s):  
Mintao Zhao
Keyword(s):  
Spatial Representation ◽  
Spatial Information ◽  
Storage System ◽  
Neural Mechanisms ◽  
Cellular Mechanisms ◽  
Human Navigation ◽  
Behavioral Studies ◽  
Closing The Loop ◽  
Species Similarity ◽  
Shed Light

Studies of human and rodent navigation often reveal a remarkable cross-species similarity between the cognitive and neural mechanisms of navigation. Such cross-species resemblance often overshadows some critical differences between how humans and nonhuman animals navigate. In this review, I propose that a navigation system requires both a storage system (i.e., representing spatial information) and a positioning system (i.e., sensing spatial information) to operate. I then argue that the way humans represent spatial information is different from that inferred from the cellular activity observed during rodent navigation. Such difference spans the whole hierarchy of spatial representation, from representing the structure of an environment to the representation of subregions of an environment, routes and paths, and the distance and direction relative to a goal location. These cross-species inconsistencies suggest that what we learn from rodent navigation does not always transfer to human navigation. Finally, I argue for closing the loop for the dominant, unidirectional animal-to-human approach in navigation research so that insights from behavioral studies of human navigation may also flow back to shed light on the cellular mechanisms of navigation for both humans and other mammals (i.e., a human-to-animal approach).

scholarly journals Habitat Protection Indexes - new monitoring measures for the conservation of coastal and marine habitats

2021 ◽  
Author(s):  
Joy A Kumagai ◽  
Fabio Favoretto ◽  
Sara Pruckner ◽  
Alex David Rogers ◽  
Lauren V Weatherdon ◽  
...  
Keyword(s):  
Biodiversity Loss ◽  
Current Status ◽  
Sustainable Development Goal ◽  
Development Goal ◽  
Habitat Protection ◽  
Marine Habitats ◽  
Freshwater Habitats ◽  
National Jurisdiction ◽  
Global Biodiversity ◽  
Do So

A worldwide call to implement habitat protection aims to halt biodiversity loss. To monitor the extent of coastal and marine habitats within protected areas (PAs) in a standardized, open source, and reproducible way, we constructed the Local and the Global Habitat Protection Indexes (LHPI and GHPI, respectively). The LHPI pinpoints the jurisdictions with the greatest opportunity to expand their own PAs, while the GHPI showcases which jurisdictions contribute the most in area to the protection of these habitats globally. Jurisdictions were evaluated to understand which have the highest opportunity to contribute globally to the protection of habitats by meeting a target of 30% coverage of PAs with Areas Beyond National Jurisdiction (ABNJ) having the greatest opportunity to do so. While we focus on marine and coastal habitats, our workflow can be extended to terrestrial and freshwater habitats. These indexes are useful to monitor aspects of Sustainable Development Goal 14 and the emerging post-2020 Global Biodiversity Framework, to understand the current status of international cooperation on coastal and marine habitats conservation.

scholarly journals Current status and future directions of cardiac rehabilitation program: a review of the literature

2019 ◽  
Vol 2 (2) ◽  
pp. 59-68
Author(s):  
Sutantri Sutantri
Keyword(s):  
Cardiac Rehabilitation ◽  
Good Health ◽  
Rehabilitation Program ◽  
Current Status ◽  
Participation Rates ◽  
Risk Factor Management ◽  
Research Areas ◽  
The Usa ◽  
Cardiac Illness ◽  
New Research

One of the effective treatments for patients recovering from acute cardiac illness or surgery is cardiac rehabilitation (CR). CR has proven to be effective to reduce mortality, morbidity, and also to improve the quality of life. The purpose of this review is to present the current status of CR program worldwide as well as to identify a potential approach for further investigation. Literature searching of electronic databases was conducted in several databases including CINAHL, MEDLINE, PsycINFO, and EMBASE, and Google Scholar. CR aims to restore patients with CVD to a state of good health. Each country has different approach in the provision and organization of CR as well as the allocation of resources, which depends on their health policies and politics. The indications for CR also differ between countries, but traditionally CR has been used following acute myocardial infarction (MI). CR programs have been divided into three phases of progression. Hospital-based or supervised site-based programs have been known as the most common model of CR in most countries. The core components of CR include patient assessment, nutritional counselling, exercise training, physical activity counselling, weight management, tobacco cessation, aggressive coronary risk-factor management, and psychosocial management. Despite the apparent benefits of CR in patients with CVD, these programs remain largely underused. The participation rates in the USA, Australia, and Europe are low, estimated at 10-30%. New research areas that explore new ways of CR delivery to improve referral and participation rates are essential.

scholarly journals Recent applications of quantitative analytical FTIR spectroscopy in pharmaceutical, biomedical, and clinical fields: A brief review

2022 ◽  
Vol 41 (1) ◽  
pp. 21-33
Author(s):  
Khairi Mustafa Fahelelbom ◽  
Abdullah Saleh ◽  
Moawia M. A. Al-Tabakha ◽  
Akram A. Ashames
Keyword(s):  
High Performance Liquid Chromatography ◽  
Fourier Transform ◽  
Ftir Spectroscopy ◽  
High Performance ◽  
Scientific Literature ◽  
Current Status ◽  
Full Potential ◽  
Biomedical Sciences ◽  
The Subject ◽  
Shed Light

Abstract Qualitative Fourier transform infrared (FTIR) spectroscopy has long been established and implemented in a wide variety of fields including pharmaceutical, biomedical, and clinical fields. While the quantitative applications are yet to reach their full potential, this technique is flourishing. It is tempting to shed light on modern engaging and the applicability of analytical quantitative FTIR spectroscopy in the aforementioned fields. More importantly, the credibility, validity, and generality of the application will be thoroughly demonstrated by reviewing the latest published work in the scientific literature. Utilizing FTIR spectroscopy in a quantitative approach in pharmaceutical, biomedical, and interdisciplinary fields has many undeniable advantages over traditional procedures. An insightful account will be undertaken in this regard. The technique will be introduced as an appealing alternative to common methods such as high performance liquid chromatography. It is anticipated that the review will offer researchers an update of the current status and prospect on the subject among the pharmacy and biomedical sciences both in academic and industrial fields.

scholarly journals Frontiers of cosmopolitanism: Educational enclaves and the extractive roots of international schools

2021 ◽  
pp. 0308275X2110596
Author(s):  
Matthieu Bolay ◽  
Jeanne Rey
Keyword(s):  
Political Economy ◽  
Social Economic ◽  
International Schools ◽  
International School ◽  
Ethnographic Research ◽  
International Teachers ◽  
Spatial Practices ◽  
School Sector ◽  
Shed Light ◽  
Do So

This article situates international expatriate schools in their cultural and political economy by drawing attention to the tensions between a cosmopolitan educational ethos and processes of social, economic and legal enclavement. Based on extensive multi-sited ethnographic research in the international school sector, we show how cosmopolitan claims of openness mirror a relative closure and ‘offshore-like’ enclavement. To do so, we build upon the notions of modularity and extractivism, which we use as heuristics to analyse social and spatial practices of defining boundaries. Gazing beyond the main foundational myth of international schools, we first outline their concomitant extractive roots. Second, we shed light on the conditions of international teachers’ circulation worldwide. Third, we examine the territorial entanglements and disentanglements that characterise international schools. Finally, we investigate the tensions induced by a cosmopolitan educational ethos whose discourse of inclusion is inevitably paired with practices of exclusion.

scholarly journals Subthalamic and Striatal Neurons Concurrently Process Motor, Limbic, and Associative Information in Rats Performing an Operant Task

2007 ◽  
Vol 97 (3) ◽  
pp. 2042-2058 ◽  
Author(s):  
Mark A. Teagarden ◽  
George V. Rebec
Keyword(s):  
Physiological Data ◽  
Striatal Neurons ◽  
Neuronal Responses ◽  
Firing Patterns ◽  
Associative Processes ◽  
Behavioral Studies ◽  
Sucrose Reinforcement ◽  
Operant Task ◽  
Anatomical Evidence ◽  
Do So

Although the subthalamic nucleus (STN) is commonly assumed to be a relay for striatal (STR) output, anatomical evidence suggests the two structures are connected in parallel, raising the possibility that parallel STN and STR firing patterns mediate behavioral processes. The STR is known to play a role in associative and limbic processes, and although behavioral studies suggest that the STN may do so as well, evaluation of this hypothesis is complicated by a lack of pertinent STN physiological data. We recorded concurrent STN and STR firing patterns in rats learning an operant nose-poke task. Both structures responded in similar proportions to task events including instructive cues, discriminative nose-pokes, and sucrose reinforcement. Neuronal responses to reinforcement comprised phasic excitations preceding reinforcement and inhibitions afterward; the inhibition was attenuated when reinforcement was absent. Reinforcement responses occurred more frequently during later training sessions in which discriminative action was required, suggesting that responses were context-dependent. Nose-pokes were typically preceded by excitations; there also was a nonsignificant trend toward inhibition encoding correct nose-pokes. Sustained changes in firing rate coinciding with specific task events suggested that both nuclei were encoding behavioral sequences; this is the first report of such behavior in the STN. Our findings also reveal complex STN responses to reinforcement. Thus both STN and STR neurons show concurrent involvement in motor, limbic, and associative processes.

scholarly journals The influence of a rival’s (in)fertility on jealousy and the allocation of blame following a mate’s infidelity

2018 ◽  
Vol 12 (2) ◽  
pp. 197-214 ◽  
Author(s):  
Maryanne Fisher ◽  
Laura Robertson ◽  
Haley Dillon
Keyword(s):  
Sex Differences ◽  
Evolutionary History ◽  
Online Survey ◽  
Sexual Infidelity ◽  
Emotional Infidelity ◽  
Past Work ◽  
Selective Pressures ◽  
Reproductive Capability ◽  
Shed Light ◽  
Do So

Selective pressures throughout evolutionary history have caused the adaptation of sex-specific responses to dilemmas that are relevant for reproductive fitness. Sex differences in imagined jealousy due to infidelity are well documented, but past work does not consider the influence of reproductive capability (i.e., being fertile versus infertile) on responses. Relying on an online survey of 369 adults, we hypothesized that infidelities involving an infertile interloper lead to less jealousy than infidelities involving a fertile interloper. Further, for sexual infidelity, regardless of the interloper’s fertility, we hypothesized men would allocate the most responsibility to their partner and women would do so for the interloper, given women are assumed to behave with more intention. This hypothesis was partially supported; while men did allocate the most responsibility to their mate, so too did women, but women also blamed the interloper more than men. With regards to emotional infidelity, again independent of the interloper’s fertility, we hypothesized men will primarily hold their partner responsible. However, we hypothesized that women will again consider the interloper responsible, but also their partner, due to concerns over fear of losing access to needed resources. This prediction was partially supported, as both sexes primarily hold their partner most responsible, and women held the interloper more accountable than did men. The findings shed light onto how individuals assess relationship threats and allocate responsibility, according to reproductive capability.

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